9X30 Hoosier Radial-8"0r 10" Rim?

[Joe DeMarzo]

In my experience the 8 inch rim hooks fine and is insignificantly faster, maybe 01 to.02 hard to measure but not slower.

The 10 inch rim in my opinion is not faster but hooks better than an 8 inch rim if your suspension is so so or you are on an iffy track. I have run the same 8 inch rim with both the big block and small block with no problems hooking.

Hope this is helpful.

[Kegracing]

Thanks Joe!

Myron, when running bias, the wider rim did reduce growth roughly about a 1/4" on a MT 29.5x9 on my car... just enough to stop the top end rub.

Ken

[Ed Wright]

On my automatic car, 10" wheels were about 2hundredths quicker, and over 1/2 MPH faster than 8" wheels. Had to use 15/16 psi with the 8" wheels, over 20 with the 10" wheels. I was foot braking back then. It was a street legal with a 383" LT1, running high 9.90s/10.0s. Pretty steady at 1.32/1.34 in 60'.
With 8" wheels the outer 1/2" or so never fuzzed up, didn't look like that part had touched the ground. The car felt more stable with 10" wheels in the 9" tires.
Also experienced "radial wobble" a few times. Putting everything on wider wheels since then. No radial wobble for about ten years now. When I had 10.5" tires, they liked 12" wheels. My present 13" X 31" radials like 14" wheels.